Machine fob beading perforated



7 Marh 6, 1945. R.IT.V B-LAKELY MACHINE FOR READING PERFORATED RECORDCARDS Filed Aug. 12, 1942 23 Sheets-Shet 1 AZTQRNEY March 6, 1945. R. T.BLAKELY 2,371,120

MACHINE FOR READING PERFORATED RECORD CARDS Filed Aug. 12, 1942 8Sheets-Sheet 2 c J'WZVE 204 5 INVENTOR K Gr p 1/2 mzu/z fi/ ATTORNEYMarch 6, 1945. R. T. BLAKELY MACHINE FOR READING PERFORATED RECORD CARDSFiled Aug. 12, 1942 8 Sheets-Sheet 4 F165. FIGS.

FIG.9.

O STUV XY FIG.8.

FIG]

' ATTORNEY March 6, 1945. R. T.YBMLAKELY 2,371,120

MACHINE FOR READING PERFORATED RECORD CARDS Filed Au 12,- 1942 8Sheets-Sheet 5 P0 l I l l l l March 6, 1945. R. T. BLAKELY 2,371,120

MACHINE FOR READING PERFORATED RECORD CARDS Filed Aug. 12, 1942 8Sheets-Sheet 6 BY W ATTORNEY March 1945- I R. T. BLAKELY 2,371,120

MACHINE FOR READING PERFORATED RECORD CARDS Filed Aug. 12, 1942 8Sheets-Sheet '7 FIG.12. 4

M v E ATTORNEY March 6, 1945.

R. T. BLAKELY MACHINE FOR READING PERFORATED RECORD CARDS 8 SheetS-SHeetB Filed Aug. 12, 1942 73; ,VNOR BY ATTORNEY positions are Patented Mar.6, 1945 I 2,371,120 MACHINE FOB BEAmNG PEBFOBATED RECORD C Robert T.Blake,

International Business New Ijork, N. Y., a corporation of New YorkApplication August 12, 1942, Serial No. 454,593 (a 88-24) 9 Claims. Thisinvention relates to record card controlled accounting machines and moreparticlularlyto a device for interpreting and recording data representedon record cards in the form of coded designations.

-The principal object of the invention is to provide an improved devicefor recording alphabetic data derived from record cards. Such cards aregenerally provided with a plurality of data receiving columns, one ioreach character. Each column is divided into twelve so-called "indexpoint positions, equally spaced, wherein anv letter of the alphabet isrepresented by a perforation in each of two positions. The positions aredivided into two groups known as the zone positions and the intrazonepositions. By dividing the alphabet into three parts, three zone used'to designate the three parts generally and the remaining nine podtionsindicate the particular letter within the zone.

In carrying out the object of the invention, an improved optical systemis provided in which for each card column there is a series oi markscontaining chara'cterpatterns, one for each of the letters-and digits,arranged in a common plane with projection systems through which thedii'i'erent character patterns are all projected from the masks to acommon point on a screen.

' The accounting machine is provided with a set of so-called uppersensing brushes to which the cards are first fed and so-called "lower"sensing brushes to which each card is fed exactly one machine cyclelater. As'the card passes the upper sensing brushes, the zone holes aresensed to determine for each column which zone of the alphabet isrepresented, and devices eontrolledby the upper brushes elect a settingaccordingly. As the card later passes the lower sensing brushes, theintrazone holes are sensed to determine the particular characterwithin'the selected'zone andiurtherdevtcesaresetwhich jointly with thefirst set devices render the opt cal system related to selectedcharacter eflective to project that character on to the screen.

Mteracardhasbeenaensedbybothsetsof -brushes, there projected on thescreenalineoieharactersrepresentingtheinterpretationotthehclesintheseveraicardcohzmns.

containareeordottheinterpreteddatawitha linetoreaeh 1 Amityville, N. 1.,mass to Machines Corporation,

a further object or the-invention resides in the provision of a devicesettable to represent an amount, which device is associated withtheselecting mechanism to operate the same independentlyof the cardsensing devices. Thus,

where it is desired to record some datanot contained on a card, suchdata may be manually or otherwise set up on the settable device and suchdata interpreted and projected on the screen for recording.

In the preferred form of the invention, each columnar lens systememploys a separate projection path for each diflerent character with anactivating lamp for each.- The sensing brushes, through relay devices,select one lamp which upon illumination directly projects the desiredcharacter image on to the screen. I

In a modified form of the invention, each character lens system isnormally blocked by a shutter and, when an intrazone hole is sensed, thelamps related to all characters having such intrazone hole areilluminated. According to the coding, each of such characters is in.adifferent zone. The zone hole opens all shutters in the related zone, sothat as a result a projection path is selected for only the characterrepre sented by the punching in the related card column even thoughseveral lampsare illuminated.

In the figures:

Fig. 1 is a diagrammatic view of the record card feeding and sensingdevices or the machine with frameand mounting ity of illustration.

and recording devices of the machine.

Fig. 3isasectionoitl'iecameraunittakenon Roi-01118.2. a Fig. 4 isanothersectional view 0! the camera unit taken on line l-l of Fig. 8. r

Fig. 4a is a timing chart of the cam controlled contacts.

Figs. 5, 6, '7 audit are sections taken onlines 5-,1-1, and H,respectively, oimg. 2 and show'the character patterns. 1

Fig. 9 is an isometric view showing a pair of character interpreting andprojecting lens syss Fig. 10 is a circuit diagram of the machine. Fig.11 is a circuit diagram of a modifled embodiment of the machine.

. Fig. 12 is a portion oi'a card showing the coding arrangement of thementof lens system of the machine.

parts for clarm. 2 is a central section or the interpreting Fig. 14 is asection taken on line l|l4 of Fig. 13.

Fig. 15 is a diagram showing the optical projection path of one of thecharacters.

General operation It has been previously mentioned that one of theprimary objects of the device is to record alphabetic characters on afilm under control of a character selecting device. Such characters areto be recorded by a novel optical system and character selectingmechanism. The characters are derived from a plurality of characterpatterns. These are each transilluminated by an individual light source,one for each character pattern. By means of a suitable lens system thecharacter patterns, when transilluminated, are projected through aseries of prisms upon a ground glass screen in a superimposed relation.By means of a character selecting mechanism controlled from a recordcard, only the desired character in a particular column will betransilluminated and projected on the ground glass screen.

Card Feeding Mechanism Card feeding and analyzing mechanism to efi'ectderiving of data from the record cards is provided which will first bedescribed.

To provide drive for the various parts of the card feeding mechanism, amotor 52 (see Fig. 1) which drives a shaft 53 is provided secured towhich is the notched driving element 54 of a one revolution clutch.Freely rotatable on the shaft 53 is a gear 55 and secured to the gear 55is a dog 56 normally restrained from engagement with the notched element54 by an armature latch 57!, which is controlled by a clutch magnet 58.Energization of magnet 58 will permit the dog 58 to engage element 56,thereby causing rotation of gear 55 secured thereto. Gear 55 through anidler 45 drives the gears 41 and 48 secured to feed roll shafts 59 andEU. I

The other end of shaft 58 carries a gear which drives a gear 62 which isalso fast to a feed roll 6211. In a similar manner a gear 61 on shaft 59drives a gear 68 fast to a shaft for driving feed roll 68a. Drive isalso provided from the gear 61 through an idler 69 to a gear fast to athe feed' rolls Id and which in turn carry the card past a set of upperanalyzing brushes Bl. Thereafter, the card is fed by the rolls 59a, 60a,82a. and 58a past the lower analyzing brushes B2, and further feed rollsdriven in a manner similar to those above carry the card out of thefeeding unit.

During the first card feed cycle, following energization of the cardfeed clutch magnet 58, the first card will be fed to a position whereits lead ing edge is underbrushes BI. During the second cycle the cardwill be fed past brushes BI and to the brushes B2, while a second cardis advanced to a position where its leading edge is under brushes Bl.During the third cycle the first card will be fed past the brushes B2and the following card will be fed past the brushes Bl. The card feedunit includes two card levers I! and 88 which close contacts 8! and $0,respectively, when cards are feeding through the machine. The time ofclosure of these contacts is shown in Fig. 4a. The card feedingmechanism thus briefly described is of the usual construction found intabulating machines.

C'am contact and emitter devices For controlling certain contact makingdevices in the machine there is provided a number of cams generallyprefixed CC. These cams are fast to a shaft 85 which is secured to agear 86 driven by the gear 79, so as to make one revolution for eachcard feeding cycle. The CC cams actuate a number of contacts, the timeof closure of which is shown in Fig. 4a. Secured to the other end ofshaft 85 is a gear M which drives a gear 92. A shaft 93 is rotated bygear 92 and drives the rotating elements of a number of emittersdesignated EMl, EM2. The drive ratio. between gears 9i and 92 is suchthat the brush element of an emitter rotates one-half a revolution inone card feeding cycle.

Recording unit The recording unit is generally shown in Fig. 2 andcomprises a prism and character pattern unit generally designated Hill,a ground glass screen ill-2 and a camera use (see also Fig. 9).

'Prz'sm and character pattern unit The prism and character pattern unitis shown in greater detail in Fig. 2. A number of character patterns 1it (see also Figs. 5-8) are disposed each in a light-tight tube ilila.The light-tight tubes are grouped in the manner shown according tozones, the numerical characters all being grouped tog-ether in aso-called numerical" zone. The alphabetic characters A-I are grouped ina "12 zone. The characters J-R in an 11 zone and the characters SZ andan additional 0 (zero) are grouped in the 0 zone (see also Fig. 12 whichshows the grouping of the various characters and numerals as usuallyemployed in representing them on the well known Hollerith tabulatingcard).

These patterns in Figs. 6, '7, and the lower part of Figs. 5 and 8 areshown as opaque for clarity of illustration, but actually will betranslucent characters as shown for 1 and 2 or "A and B. Considering forexample the numerical zone, each character (see Fig. 2) istrans-illuminated by a light source Hi and intermediate the light sourceiii and the character pattern 5 I0 is a condensing lens H2.

Considering now the projection path of the character 1, after the lightpasses through the condensing lens H2 and character pattern ill? thebeam passes toa mirror surface ii 3 of a prism l M and then passes tothe next prism H4. These prisms H4 are of the well known interceptingtype and there are a series of these prisms, one for each of thecharacters. The image of the character 1 passes through all of these andthen passes through the objective lens H9; The

image is then reflected by a reflecting transmitting prism I2U andpasses through from the back of the partially reflecting lighttransmissive surface l2l and is focused on the ground glass 12.

Path for the character 2 i similar except the image is first partiallyreflected by the next to the uppermost prism I H and then passes throughthe lower ones to the objective lens I I9 and then is partiallyreflected by prism I20, through surface I2l to ground glass I02. Similarpaths for the characters 3-9 and 0 may also be traced as will beunderstood by referring to Fig. 2.

that as many columns of which carry the drive ".other shaft I39 aifordsa support for a takeup film and a driving gear housing there is .Theimages of characters J, K, L P, Q, R

pass through a similar objective lens I22 and are partially reflected bythe surface 'I2I to ground glass I02. Characters A, B, C H, I (see alsoFig. 15 which shows ter F) are partially reflected by the nearest prismIll, then pass through the other prisms Ill and are then partiallyreflected by a prism I25 through a lens I23, through prism I20, toground glass I02. Similarly, the character images of the zonepassthrough prisms mirror surface I21 through the lens I20 to ground glassI02.

Figure2 shows a cross-section of one column of character patterns, lightsources and prisms. In this disclosure for simplicity of illustrationand description, two columns of recording apparatus are shown as in Fig.9, but it will be understood recording apparatus as the maximum numberof columns of data it is desired to record would be provided. I

In operation, record cards will be analyzed b the card feeding andanalyzing mechanism and circuit; set up thereby will cause the lightsource corresponding to the particular character it is desired to recordto be illuminated and cause that character to be depicted on the groundglass screen I02. The camera unit I03 (see Fig. 9) is then actuated torecord that character and characters for adjacent columns.

The camera unit The camera unit will now be described in detail.Referring to Figs. 2, 3 and 4, the camera unit comprises a frame plateI25. Fixed in the frame plate I29 is a shutter and lens assembly I30. Ashutter trip lever I3I is provided which, when moved downwardly asviewed in Fig. 4, causes actuation of the shutter mechanism in the usualmanner. A mounting plate I32 is fixedly secured to the frame plate I29and fastened in plate I32 is a stud I33 (see Fig. 2) upon which ismounted the film supply spool I32. Rotatably mounted in plate I32 aretwo shafts I35 and I36 sprockets I31 and I38.- An- 'rirpool uu. ShaftI35 has fast to it a ratchet m I42 which is meshed with an intermediategear I43 which in turn is meshed with a gear I fixed on shaft I36. Asuitable belt and pulley drive connection is provide'dfrom a pulley I45fixed to shaft I38, then to the takeup spool pulley I48 on shaft I39.Shaft I36 is slotted at this end to receive a winding key generallydesignated I" in Fig. 3 and which is normally retracted as shown.Suitably carried by the assembly plate I32 is a shutter and film feedoperating solenoid I50 which, when energized, is adapted to depress anactuating member Iii and trip the shutter member I3I. Member II isspring restored as shown and upon restoring movement a pawl I52 pivotedthereon actuates the film feed to advance the film-a line space. A bladespring I53 may be used to prevent retrograde movement of ratchet I4 IReferring again to Fig. 2, within the camera provided a pivoted filmlever I5 3 which is spring urged into contact with the film supply roll.When the film is exhausted, member I34 swings clockwise to such anextent that contacts I55 which may be termed the film lever contactsopen. The camera assembly is'provided with a suitably removable housingor cover gen- 56 in Fig. 4, and the removable back plate by erallydesignated I cover is held in the position on the the light path of thecharac- Ill and are reflected by .a

.energization of solenoid means of a pair of knurled thumb-screws I51.

The film which is designated I50 in Fig. 3 is provlded with the usualfeeding sprocket holes and passes under the first two of a pair of filmguides designated I60, thence through a film gate gener* ally designatedI6I (see also Fig. 2), thence under another pair of film guides I62. Thefilm guides I30 and I62 and the film gate IBI are suitably mounted onthe assembly plate I32.

The camera is first loaded with the cover I06 removed, then the cover isreplaced and upon I50 a section of film is exposed. Upon deenergizationof solenoid I30,

- the film is advanced a line space and anew section of unexposed mm isbrought to the film date. when the film is exhausted, the film levercontacts I55 open and the operation stops. The

operator then presses the windup key I41 inwardly and winds theremaining section of the film onto the takeup reel I. The exposed filmmay then be removed and the camera reloaded.

In actual use, each roll of film after exposure would be removed fromthe recorder unit and then developed. After development, fixing anddrying, printed enlargements of any desired size or length can be madeas desired. Duplicate copies in any desired number can also be printed.Reversal film can be used if desired. These steps need not be furtherdescribed as they are all well known.

Circuit diagram Before starting the machine, the operator EM2 foranalyzing the intrazone value of a designation on the card. There isprovided one of the emitters EMI and Ell/I2 for each column of data tobe recorded.

With cards 82 in the supply hopper 83 (Fig. l) the operator closes mainline switch I'Ili (Fig. 10) supplying current to lines Ill and .I I2.With current supplied to the lines Ill and I12, the motor 52 starts torotate and continues in operation until the switch I10 is opened. Withmotor 02 in operation, the shaft 53 driven thereby (Fig,

1) also rotates. The operator now depresses the start ke I13 and acircuit is completed from line I'II, via wire I'M, through contactsI'I3c, controlled by the start key, start relay S and card feed clutchmagnet 58 in parallel therewith to line I12. With card feed clutchmagnet 58 energized, the armature latch 51 (Fig. l) is retracted topermit'dog 56 to engage the one tooth ratchet 54, thereby causing gear38 to rotate and provide drive to the picker mechanism, card feeding andcard contact rolls in the manner previously described,

The operator may either hold the start key depressed until certain othercircuits are completed or may alternativel release the start .key andthen depress it a second time. In either event during the first cardfeeding cycle, the first card will be advanced to a position where itsleading edge just insulates the brushes BI from the contact roll I6.With t e card in this position, the card lever contacts 8! shift toclose card lever contacts 09 at the time shown in the timing diagram(Fig. 4a). This completes a circuit from line III through contacts 89,relay coil M to line I12. Relay coil M upon energization closes itsholding relays. cam contacts CO3 which complete a circuit from contactsMI to provide a circuit for maintaining coil M energized through camcontacts C08 and contacts M l From the timing diagram (Fig. 4a) it maybe noted that cam contacts CO8 are closed when contacts 89 open betweencards. Relay contacts M2 close to maintain start relay S and card feedclutch magnet 58 energized after the start key I13 is released. Duringthe next cycle the first card is advanced past brushes BI and the zonevalue of a combinational hole designation is set up on a group of zonesetup relays.

The zone relay setup circuit will now be traced. The circuit is fromline I1I, through relay contacts M3, cam contacts CCI now closed, upperbrush contact roll 16 and, assuming an "11 zone designation, through the11 zone hole in the card, brush Bl, plug socket I63 and plug connectionto plug socket I64, through emitter EMI at the 11 segment spot, to thezone pickup relay PI I, and back to the other side of line I I2. If thezone indication were 0, relay P would be energized or, if it were 12,"relay PI2 would be energized.

Relay PII upon energization closes relay contacts PI Ia to maintainrelay coil Pll energized through cam contacts CC2 now closed. Camcontacts CC2 open near the end of the cycle, but before this occurs thesetting on the zone control pickup relays is transferred to zone controlThis is effected upon closure of line I'll, through cam contacts (363,through relay contacts PI lb now closed, relay coil HII to line sidel'l2. Relay coil HII is maintained energized by closure of its contactsHlla which provide a circuit from relay HII back to line through camcontacts CC4. Cam contacts 004 remain closed into the next cycle to keeprelay HII energized while the intrazone values 9 to 1 are derived fromthe card during the next cycle.

Near the end of the cycle, when the first card is passing the lowerbrushes, the card lever 88 (Fig. 1) is shifted to close contacts 90.Closure of contacts 98 completes a circuit from line I'll,

through contacts 90, relay coil N to the other side of line I12. Relaycoil N closes its contacts NI to complete a circuit to cam contacts CC9.These contacts are closed during the interval that card lever contacts88 open between cards. Relay contacts N2 close to shunt contacts M2 inthe circuit which extends to start relay S and card. feed clutch 58. Thecircuit is from line I'II, wire I'l4, stop key contacts I85a, film levercontacts I55, relay contacts N2 and M2 in parallel, relay contacts SI,start relay S and card feed clutch magnet 58 in parallel to line I'l2.

During the following cycle, the intrazone values of the carddesignations will be sensed as the card passes thelower brushes B2.Assuming an intrazone value of 4, a circuit will be completed asfollows: from line I'I2, card lever contacts N3, cam contacts CO nowclosed, lower brush contact roll 1|, hole in the card at the 4 indexpoint position, brush B2, plug socket I65, through plug wire connectionto plug socket I66, through emitter EM2, relay coil R4 toline I'll.Relay-coil R4 is maintained energized by a circuit through its relaycontacts R4a and cam contacts C06 which remain closed for the greaterpart of the cycle.

With relays R4 and HI I energized the machine is now conditioned torecord the character M. A circuit for transilluminating the character Min the 11 zone is completed as follows: from line I'll, contacts 2880now closed, relay contacts Hllb, light source I pertaining to thecharacter M, resistance I84, relay contacts R4b to line I12. Withcharacter pattern IIIJ bearing the character M transilluminated (Fig.2), the light beam will be redirected by prism II4, thence through lenssystem I22 and reflected by the partially reflecting surface I 2| toground glass I02.

Closure of cam contacts CC'l near the end of the cycle completes acircuit from line I'll, wire I14, cam contacts CC1, relay contacts N3 toshutter trip magnet I58, thereby causing exposure of the character imageappearing on the ground glass screen I82 on the film. Opening of camcontacts CC'I will deenergize magnet I50 and cause feeding of the filmone line space as previously described with reference to Fig. 4.

It will be appreciated that any number of char acters may be depicted onthe screen and re corded'on the film depending on the capacity of themachine, and the number of columns plugged for recording operations.Operations will continue in this manner until the machine either runsout of cards, thereby opening card lever relay contacts M2 and N2, orthe end of a film roll is reached thereby opening film lever contactsI55or upon depression of the stop key I85 by the operator. Operations ona new series of cards will then be initiated in the same manner aspreviously "described.

The circuits for other characters controlled by difierent combinationsof zone and intrazone values will now be described. With an 11 zonedesignation, relay contacts Hllb will be closed as before. If theintrazone designation were 9," contacts R9b would be closed and acircuit would be completed from line I12, through contacts R85,resistance I84, light source III for the character R, relay contacts HIlb, to line I'll. Similarly, if the intrazone value were 8, 7, 6, 5, 3,2, or 1, the light sources for character patterns Q, P, O, N, L, K andJ, respectively, would be illuminated. For a zone value of 12, relaycontacts Hl2b would be closed, and for intrazone values of l, 2, 3, 4,5, 6, 7,8 or 9 the RI b, R212, etc., contacts, respectively, would beclosed. This would cause illumination of the light sources for characterpatterns A, B, C, D, E, F, G, H, or I, respectively.

Energization of relay coil H0 under control'of a 0 zone designation willcause closure of relay contacts Hllb. An intrazone designation of 2, 3,4, 5, 6, 7, 8 or 9 will cause closure of relay contacts R2b, R3b, etc.These various intrazone designations will respectively causeillumination of characters S, T, U, V, W, X, Y, or Z.

For numerical characters, i. e., 1, 2 8, 9, there will be no zone relayenergized. Consider, for example, the character 5. The relay contactsR5b will be closed and a circuit will be completed from line I12,through relay contacts R52), resistance I84, illuminating lamp III forthe 5 digit, through normally closed relay contacts H I2c, HI I 0, H00to line I'll. Circuits for the other significant numerical digits willbe completed in a similar manner.

The circuit for the digit zero (0) is a special circuit and is completedin the following manner. Passage of a card bearing a zero perforationpast the upper brushes will cause energization of relay 6, 'l, 8, or 9.Such R90, Ric. file, through the now closed relay contacts Rlb,resistance I, light source III for numeral 0, through contacts H01) toline "I. It may be explained that the purpose of the R2c, Ric, etc.,serially d-contacts is to break a circuit to the light source III forthe zero numeral when a zone value of zero is present in conjunctionwith an intrazone value of 2, 3, 4, 5,

a condition would close contacts Rlb, but due to one of the seriallyconnected contacts Ric, R90, etc., being open, no recording of a zero(0) numeral can occur at this In the event that Hating of numerical dataonly is to be effected, the zone pickup plug connections between socketsI61 and I will not be made. As a card column bearing zero passes thelower brushes, the R9 relay for that column will be energized to effectclosure of relay contacts H0b. A circuit is then completed from lineI12, through the serially connected R9c, Ric, etc., toR2c relay contactsnormally closed and through the now closed relay contacts R0b lightsource 0, normally closed relay contacts Hl2c, HI lo. and H0c to line"I. Light source 0',(see Fig. 2) is in the numerical zone and causesrecording in the usual way when the shutter trip is actuated. Otherholding I relay will digits, i. e., 9, 8, et'c., through 1 will berecorded 7 as previously described.

Reference has been made in tracing typical light source illuminatingcircuits to resistors I84 serially connected to the light sources. Theactualvalue of these resistors is determined by the optical path therays from a particular light source must travel. If these rays traverseseveral of the prisms III, the light source must be brighter than thelight source for a character whose light my path passes through only afew prisms. Hence, in the former case less series resistance will beused than in the latter case. The purpose then of these resistances isto cause transillumination of each character in such a manner that thecharacters will all be depicted on the screen I02 with uniformintensity.

Modification using shutter zone operation In this modification in placeof controlling the circuits to the various light sources by means ofzoning relays, zone control shutters to perform a similar function areprovided. These operate directly on light rays from a character pattern.Thus, if the character F having a 12 zone and 6 intrazone value is to berecorded, the 6 intrazone value will cause illumination of thecharacters in all zones that pertain to a 6 intrazone value, namely, Ffor 'the 12 zone, 0 for the 11 zone, W for the 0 zone and 6 for thenumerical zone. However, the light paths of all the above characters,except F, will be rendered inoperative by shutters or light gates now tobe described.

In Fig. 13 there is shown a portion of Fig. 2 with the so-called lightgates included therein. Referring to Fig. 14 whichis a detail View ofone of these devices, there is provided a gate I90 movable in a verticaldirection in a suitable light-tight holder or guide Hi. The upper end ofgate I90 l4) Similar light gate mechanisms are provided in the lightpath for each zone; thus magnet I93 controls the pathfor the numericalzone, magnet I99 for the "0" zone, magnet I99 for the "12 zone andmagnet 209 for the 11 zone. The

operation of the machine forthis will now be described with reference tothe circuit dia ram. Referring now to Fig. 11, the machine is put inoperation in exactly the'same manner by depression of start key I13. Asthe first card passes the upper-brushes B1, the zone control beenergized and assuming a zone indication of 12 relay HI2 will beenergized near the end of this cycle. As this same card asses lowerbrushes B2, assuming zone value of "7," Closure of contacts HI2b fromline I'II, wire I'll, contacts 209a now closed, relay contacts HIIb,gate solenoid I99 for the 12 zone and back to the other side of lineI12. The relay contacts R'Ib complete a parallel circuit throughresistances I94 and the light sources III for digit 7 and characters X,P and G. Referring to Fig. 2, it will be noted that each of these lightsources is in a different zone.

Referring again toFig. 13, it will be seen that the solenoid I99 beingenergized renders the "12" zone light source eifective and, upontripping of shutter magnet I50 under control of cam contacts CC'I, thecharacter "(3 will be recorded. Contacts HIlc being open preventenergization of the gate solenoid I93 while recording is taking place.If the zone indication were 11, solenoid 290 would be energized tocontrol recording of the character 1?. If the zone indication. were 0,solenoid I98 would be energized to control re cording of-the character Xand, ii there were no zone indication, relay contacts H00, HiIc, andHI2c would be closed to cause pickup oi. solenoid I93 which would permitthe numeral '7 to be recorded.

If the numeral "0 is present in a column of the card which is to berecorded, the zone relay H0 will be energized to close contacts H0! andenergize solenoid I98. Intrazone relay R0 will also be energized toclose relay contacts RIlb and energize light source III, by thefollowing circuit; from line I12, through the serially connected relaycontacts R90, R80, etc., to and through R20, Rlc, relay contacts R0b nowclosed, resistance I84 and light source III for the digit 0 to line III.With solenoid I98 causing the gate of the 350 zone to be open, recordingof the digit I3 will then'occur. If a 0 zone alpha betical character isto be recorded such as Y3 then a 5 intrazone value will close contactsR512 and open relay. contacts REc, thereby per All other controls arethe same for this modifica tion as in the original embodiment, exceptfor straight zero listing with no zone control.

is of suflicient thickness to receive the threaded end of a plunger rodI92. Plunger I92 is slidably movable in the solenoid I93. Energizationof solenoid I93 will cause the plunger I92 and gate I90 aiiixed theretoto rise and permit light rays to pass down the tube to lens I I9 (seealso Fig. 2). Upon deenergization the gate I90 returns to a closedposition under action of spring I94 (Fig;

As previously mentioned, in this case relay Rh would be energized (seeFig. 11) Likewise, with no zone control relays H0; HIi and Hi2 will notbe energized and accordingly'solenoid I93 will be energized by the samecircuit as previously described. With relay R0 energized, relay contactsRIIb will be closed and a circuit to illuminate light source III for the0' numeral will be completed from line I12, normally closed relaycontacts R9c, R80, etc., through the now closed relay contacts RIIb,light source III for the 0 to line I". Light source 0' is in thenumerical zone and with shutter solenoid I93 actuated reas before anintrarelay coil R'l will be energized.

will complete a circuit- The machine is provided with an auxiliarysettable device upon which an amount may be set,

and such setting may be caused to select any.

numerical character for projection after the sensing o1 cards.

Referring to Fig. 10, 206 represents a conducting slide and 201 aplurality of conducting segments. A settable wiper or brush 208 isprovided which may be set to represent a numerical value by moving it toa position where it forms a circuit between the common conducting slide208 and the correspondingly numbered segment 201. When the operatordesires to record the number set up by brush 208, the key I85 isdepressed to stop recording if the machine is in operation and theswitch 209 shifted to close contacts 209a and 205i: and open two sets ofcontacts 208a and close two sets209d. Assuming a digit value or 5 is setup, a circuit will then be completed from line I12, through relay contacts 209a, common segment 206, brush 208 spanning to the fifth segment201, through cable 201a, resistance I84, light source III for digit 5,'switch contacts 209d now closed to line I". With the digit 5"transilluminated, the operator now depresses key 2l0 to close contacts2I0a and energize shutter trip magnet I50 and record the digit "5.Similar circuits will be completed for different columns or fordifferent digits therein. To record a setting of "0, a separate zerodigit designated 0' is connected to zero segment 20?. This is necessarysince the 0" in the zero zone cannot be used here as there is no zoningcontrol. The 0' zero is in the numerical zone (see Fig. 2).

The foregoing description has been applied to relay zone control. Forreadout of a setting for recording purposes with shutter zone control,reference may now be made to Fig. 11 A similar settable devicecomprising slide 206, segments 201 and brushes 208 like in Fig. isprovided. The switch 209 is shifted as before to close contacts 2090,open contacts 209 0 and close contacts 2090!. Assuming a digit value of7 is set up, a circuit will then be completed from line I12, throughrelay contacts 209a, common segment 206, brush 208 spanning the 7thsegment 201, through cable 201a, resistance I 84, light sources III forG, P," X" and digit to line III. A circuit to energize shutter magnetI93 is completed from line Ill, wire I14, relay contacts 20811 nowclosed, to shutter magnet I93 and back to line "2. With shutter magnetI93 energized, the illumination for the digit 7 only will be efiective,the operator then depressing I key 2| 0 to close contacts HM andenergize shutter trip'magnet I50 and record the digit 7." Similarcircuits will be completed for diiierent columns or for difierent digitstherein. To record a digit "0 as in Fig. 10, a separate zero digitdesignated 0' is connected to zero segment 201. This is necessary sincethe "0 in the zero zone'cannot be used here as there is no zoningcontrol. The 0' zero is in the numerical zone (Fig. 2)

While there have been shown and described and pointed out thefundamental novel features of the invention as applied to a singlemodification, it will be understood that various omissions andsubstitutions and changes in the form and details of the deviceillustrated and in its operonly as indicated by the scope or thefollowing claims.

What is claimed is:

1. In a machine arranged for control by record cards having columns ofindex point positions, each column containing a plurality of zonepositions and a plurality of intrazone positions, an alphabeticcharacter being represented by a pair of designations, one in a zoneposition and one in an intrazone position, the combination oi sensingmeans for the zone positions, sensing means for the intrazone positions,a series of alphabetic character patterns, a light source for eachpattern, a screen, an optical system intermediate each pattern and saidscreen, part of said systems being common to all the patterns,illumination of any light source causing projection of the relatedcharacter pattern uponv said screen through the related optical system,and means jointly controlled by both said sensing means upon sensing thealphabetic designations in. a card column for causing illumination ofthe lamp related to the pattern of the alphabetic character designatedin the column.

tions, eachcolumn containing a plurality of zone positions and aplurality of intrazone positions, an alphabetic character beingrepresented by a. pair 01 designations, one in a zone position and onein an intrazone position, the combination of sensing means for the zonepositions, sensing means for the intrazone positions, a series ofalphabetic character patterns, a light source for each pattern, ascreen, an optical system intermediate each pattern and said screen,part of said systems being common to all the patterns, illumination ofany light source causing projection of the related character patternupon said screen through the related optical system, means controlled bythe zone sensing. means for partially establishing a current path forillumination of all the lamps related to characters in the zonedesignated, and means controlled by the intrazone sensing means forcompleting the current path for one of said lamps in accordance with theintrazone designation.

3. In a machine arranged for control by record cards having columns ofindex point positions, each column containing a plurality of zonepositions and a plurality of intrazone positions, an alphabeticcharacter being represented by a pair of designations, one in a zoneposition and one in an intrazone position, the combination of sensingmeans for the zone positions, sensing means for the intrazone positions,a series of alphabetic character patterns, a light source for eachpattern, a screen, an optical system intermediate each pattern and saidscreen, part of said systems being common to all the patterns,illumination of any light source causing projection of the relatedcharacter pattern upon said screen .through the related optical system,and means lined therein through which light is projected to the opticalsystem.

5. In a device of the class described, a series of stationary characterpatterns representing all of the digits, arranged in a common plane, alamp on one side of each pattern, a series of partially reflectingsurfaces, one for each pattern, located on the opposite side of thepattern and arranged in a line to reflect all of the patterns along thesame single line, a screen in line with said line of projection, saidpatterns being located at varying distances from the screen and eachpattern being projectable through its related reflecting surface andsurfaces related to characters nearer the screen and means forselectively illuminating one of said lamps whereby thelrelated patternwill be projected through one or more partially reflecting surfaces to acommon area on said screen. 6. The invention set forth in claim 5 inwhich means are provided for causing the intensity of illumination ofthe lamps to vary in accordance with the number of partially reflectingsurfaces through which the related pattern is projected, whereby allpatterns will be projected upon the screen with substantially the samelight intensity.

7. In a device of the class described, a flrst series of stationarycharacter patterns, an objective screen, partially reflecting surfacesadjacent to said screen, a projection system between said patterns andthe reflecting surfaces, whereby said patterns are reflected by thereflecting surfaces on to the screen, a second series of stationarycharacter patterns, a projection system between said second series ofpatterns and said reflecting surface for projecting said second seriesof patterns through said partially reflecting surfaces on to the screen,whereby both patterns are projected on the screen, one reflected from 8.In a device of the class described, a stationary character pattern, anobjective screen, a partially reflecting surface adjacent to saidscreen, a projection system between said pattern and the reflectingsurface, whereby said pattern is reflected by the reflecting surfaceonto the screen, a second stationary character pattern, a projectionsystem between said second pattern and said reflecting surface forprojecting said second pattern through said partially reflecting surfaceon to the screen, whereby both patterns are projected on the screen, onereflected from said surface and the other through said surface, ashutter for each pattern normally rendering the optical systemsineffective, and means for opening either of the shutters whereby aselected pattern will be projected on to the screen.

9. In a machine arranged for control by record cards having columns ofindex point positions, each column containing a plurality of zonepositions and a plurality of intrazone positions, an alphabeticcharacter being represented by a pair of designations, one in a zoneposition and one in an intrazone position, the combination of sensingmeans for the zone positions, sensing means for the intrazone positions,a series of alphabetic character patterns, a light source for eachpattern, a screen, an optical system interthe related character patternupon saidscreen through the related optical system, a series ofshutters, one for each optical system, normally rendering the opticalsystems ineffective, means controlled by the zone sensing means forillumihating the lamps related to characters of the sensed zone, andmeans controlled by the intrazone sensing means for opening the shutterrelated to a character within the zone, whereby the characterrepresented in the record card column will be projected on the screen.

, ROBERT T. BLAKELY.

